function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arndt, Thomas & Wink, Michael', 3],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 3],
    ['Boddaert, Pieter', 4],
    ['Braun, Michael P. & Datzmann, Thomas & Arndt, Thomas', 5],
    ['Callaghan, Corey T. & Kekeubata, Esau & Waneagea, Jackson', 3],
    ['Fischer, Wagner & Faria de Godoi, Raquel', 3],
    ['Frahnert, Sylke & Turner, Donald A. & Bracker, Cordula', 4],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 4],
    ['HUME, JULIAN PENDER', 9],
    ['Jansen, Justin J. F. J.', 3],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 4],
    ['Linnaeus, Carolus', 38],
    ['Price, Roger D. & Johnson, Kevin P. & Palma, Ricardo L.', 8],
    ['Rodríguez, Oscar & Castillo, Leandro & Smith, Paul', 9],
    ['Voisin, Claire & Voisin, Jean-François', 79],
    ['Other (39)', 64]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=243)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);